Cheapest return flights from Montreal to Buenos Aires in December from $717

AirHint found the following cheapest return flights from Montreal (YUL) to Buenos Aires (EZE) in December 2025 (see full year).

Return flights

04 Dec - 11 Dec LATAM Airlines Group
06 Dec - 13 Dec LATAM Airlines Group
07 Dec - 14 Dec LATAM Airlines Group
02 Dec - 09 Dec LATAM Airlines Group
03 Dec - 10 Dec LATAM Airlines Group
09 Dec - 16 Dec LATAM Airlines Group
01 Dec - 08 Dec LATAM Airlines Group
08 Dec - 15 Dec LATAM Airlines Group
11 Dec - 18 Dec LATAM Airlines Group
10 Dec - 17 Dec LATAM Airlines Group
28 Dec - 04 Jan LATAM Airlines Group
24 Dec - 04 Jan Arajet
30 Dec - 06 Jan LATAM Airlines Group
27 Dec - 03 Jan LATAM Airlines Group
31 Dec - 07 Jan United
26 Dec - 02 Jan LATAM Airlines Group
25 Dec - 01 Jan Avianca
29 Dec - 05 Jan LATAM Airlines Group

Also check the deals for one-way flights from Montreal to Buenos Aires in December.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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